Electric energy quality adjusting device and control method thereof

The invention discloses an electric energy quality adjusting technical method, and aims to provide an electric energy quality adjusting device and a control method thereof, the technical scheme is characterized in that the electric energy quality adjusting device comprises a parallel active filter, a DC bus temperature and voltage unit and an EMS energy management system, the parallel active filter comprises a distributed photovoltaic array, an MPPTDC/DC converter and a parallel inverter, the DC bus voltage stabilization unit comprises a lithium battery pack, a BMS battery management unit and a bidirectional DCDC converter, the EMS energy management system comprises a signal acquisition module, a data calculation and analysis module and a signal control module, the MPPTDC/DC converter is set as a Boost-Buck non-isolated MPPTDC/DC converter, in the charging circuit, Boost and Buck are connected through an isolation transformer, the preceding stage Boost circuit uses an MPPT control strategy, and the Buck circu